Trig Functions Flashcards
1
Q
Tangent
A
OPP/ADJ
Y/X
Cotangent
Symmetric around origin - period π
2
Q
Cosine
A
ADJ/HYP
x
Secant
Start (0,1) - Period 2π
3
Q
Sine
A
OPP/HYP
y
Cosecant
Start (0,0) - Period 2π
4
Q
π/6
A
30 (√3/2, 1/2)
Tangent √3/3
5
Q
π/4
A
45 ( √2/2, √2/2)
Tangent 1
6
Q
π/3
A
60 ( 1/2, √3/2)
Tangent √3
7
Q
0, 90, 180, 360
A
0 (1,0) Tangent 0
90 (0,1) Tangent Undefined
180 (-1, 0) Tangent 0
360 (1,0) Tangent 0
8
Q
Secondary Trig Functions
A
CSC h/y 1/SIN
SEC h/x 1/COS
COT x/y 1/TAN
9
Q
Pythagorean identities
A
10
Q
Double Angle
A
11
Q
Half Angle
A
12
Q
Addition
Subtraction
A